Yep. The fossil badge. I would like to rematch you when you feel like it with my tougher team. Too bad Arceus can't enter the battles. I think my gym team is tougher, but I have a few wildcards for fun.
1. Go to http://www.filb.de/games/tools/aikotoba
2. Put your ID into where it says, make sure the language of your game is marked correctly, and make sure you have HG/SS marked.
3. It'll come up with a screen that shows you what to put in to get new wallpapers, and a Slugma, Wooper, and Mareep egg. (At the bottom) The video on the same page will show you who to talk to.